The demonstration in Harrow was organized by Stop Islamification of Europe, which said ahead of the demo that it planned to remain peaceful. Stephen Gash of the SIOE — whose motto is “Racism is the lowest form of human stupidity, but Islamophobia is the height of common sense” — said before the demo: “We don’t want any more mosques until all this hatred is sorted out.” But the violence erupted when they were confronted by hundreds of protestors who the police said were either members of a group called United Against Fascism, or Muslims providing support to the mosque.